<template>
	<view>
		<view class="search-box">
		  <uni-search-bar :radius="100" cancelButton="none"  @input="input" ></uni-search-bar>
		</view>
    <!-- 搜索建议列表-->
    <view class="sugg-list" v-if="searchReault.length !==0">
      <view class="sugg-item" v-for="(item,i) in searchReault" :key="i" @click="gotoDetail(item)">
        <view class="goods-name">{{item.goods_name}}</view>
        <uni-icons type="arrowright" size="16"></uni-icons>
      </view>
    </view>
    <!-- 搜索历史-->
    <view class="history-box" v-else>
      <!-- 标题区-->
      <view class="history-title">
        <text>历史记录</text>
        <uni-icons type="trash" @click="clearHistory"></uni-icons>
      </view>
      <!-- 列表区-->
      <view class="history-list">
        <uni-tag :text="item" v-for="(item,i) in historyies" :key="i"  @click="gotoGoodsList(item)"></uni-tag>
      </view>
    </view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
        timer:null,
        kw:'',
				searchReault:[],
        historyList:[]
			};
		},
    methods:{
     input(e){
        clearTimeout(this.timer)
        this.timer = setTimeout(()=>{
          this.kw = e.value
          this.getSearchList()
        },500)
      },
     async getSearchList(){
        if(this.kw.length === 0){
          this.searchReault = []
          return
        }
       const {data:res} = await uni.$http.get(`/api/public/v1/goods/qsearch`,{query:this.kw})
       if(res.meta.status !== 200) return uni.$showMsg()
       console.log(res)
       this.searchReault = res.message
       this.saveSearchHistory()
      },
      gotoDetail(item){
        console.log(123)
        uni.navigateTo({
          url:`/subpkg/goods_detail/goods_detail?goods_id=${item.goods_id}`
        })
      },
      /* 保存历史记录*/
      saveSearchHistory(){
        const set =  new Set(this.historyList)
        set.delete(this.kw)
        set.add(this.kw)
        this.historyList = Array.from(set)
        uni.setStorageSync('history',JSON.stringify(this.historyList))
      },
      clearHistory(){
        this.historyList = []
        uni.setStorage({
          'history':[]
        })
      },
      gotoGoodsList(item){
        uni.navigateTo({
          url:`/subpkg/goods_list/goods_list?query=${item}`
        })
      }
    },
    computed:{
      historyies(){
       return [...this.historyList].reverse()
      }
    },
    onLoad(){
      this.historyList = JSON.parse(uni.getStorageSync('history') ||  '[]')
    }
	}
</script>

<style lang="scss">
.search-box{
  position:sticky;
  top:0
  z-index 999
}
.sugg-list{
  padding: 0 5px;
  .sugg-item{
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    padding: 13px 0;
    border-bottom: 1px solid #efefef;
    .goods-name{
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
  }
}
.history-box{
  .history-title{
    display: flex;
    justify-content: space-between;
    padding: 0 5px;
    height: 40px;
    align-items: center;
    font-size: 13px;
    border-bottom: 1px solid #efefef;
  }
  .history-list{
  display: flex;
  flex-wrap: wrap;
  .uni-tag{
    margin-top: 5px;
    margin-right: 5px;
  }
  }
}
</style>
